/* Intensity Analytics — Frontend
   DNA hash: 695390aea4c5
   Generated by frontend-design-engine skill */

/* ───────────────────────── Tokens ───────────────────────── */

:root {
  /* Color — warm-neutral-editorial (light) */
  --bone: #F4EFE6;
  --bone-deep: #EAE2D1;
  --ink: #0B0D12;
  --ink-soft: #1A1D24;
  --prose: #3E3A33;
  --prose-mute: #6B655A;
  --rule: #D4CCBE;
  --rule-strong: #B8AF9E;
  --amber: #C9841A;
  --amber-deep: #A66A0F;

  /* Semantic */
  --bg: var(--bone);
  --bg-elev: var(--bone-deep);
  --fg: var(--ink);
  --fg-soft: var(--prose);
  --fg-mute: var(--prose-mute);
  --rule-c: var(--rule);
  --accent: var(--amber);
  --accent-deep: var(--amber-deep);

  /* Typography */
  --font-display: "Fraunces", "Iowan Old Style", "Hoefler Text", Georgia, serif;
  --font-body: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --h-weight: 380;
  --h-weight-bold: 520;
  --h-wonk: 1;
  --h-soft: 30;
  --h-opsz: 96;

  /* Scale — modular 1.25 */
  --fs-0: 0.8125rem;   /* 13px */
  --fs-1: 0.9375rem;   /* 15px */
  --fs-2: 1.0625rem;   /* 17px */
  --fs-3: 1.3125rem;   /* 21px */
  --fs-4: 1.75rem;     /* 28px */
  --fs-5: clamp(2rem, 4vw, 3.25rem);
  --fs-6: clamp(2.75rem, 7vw, 5.5rem);
  --fs-7: clamp(3.5rem, 12vw, 8rem);

  /* Spacing — editorial broadsheet */
  --pad-inline: clamp(1.25rem, 4vw, 3rem);
  --pad-section: clamp(4rem, 9vw, 8rem);
  --pad-section-lg: clamp(6rem, 12vw, 11rem);
  --gap-col: clamp(1.5rem, 3vw, 2.5rem);
  --max-w: 1280px;
  --max-prose: 62ch;

  /* Motion */
  --dur-fast: 180ms;
  --dur: 360ms;
  --dur-slow: 720ms;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0B0D12;
    --bg-elev: #13161E;
    --fg: #ECE4D4;
    --fg-soft: #C5BCA8;
    --fg-mute: #8A8374;
    --rule-c: #2A2D34;
    --rule-strong: #3E434D;
    --accent: #E1A24A;
    --accent-deep: #C9841A;
  }
}

/* ───────────────────────── Reset ───────────────────────── */

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: var(--fs-2);
  font-weight: 400;
  line-height: 1.55;
  font-feature-settings: "ss01", "cv11";
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100svh;
  position: relative;
  overflow-x: hidden;
}

/* Paper-organic texture overlay */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.35;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.04  0 0 0 0 0.05  0 0 0 0 0.07  0 0 0 0.06 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
@media (prefers-color-scheme: dark) {
  body::before { mix-blend-mode: screen; opacity: 0.28; }
}

img, svg { display: block; max-width: 100%; height: auto; }

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

a { color: inherit; text-decoration: none; }

/* Focus */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Selection */
::selection { background: var(--accent); color: var(--bg); }

/* Skip link */
.skip {
  position: absolute;
  top: -100px;
  left: 1rem;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: var(--bone);
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  z-index: 100;
  transition: top var(--dur) var(--ease);
}
.skip:focus-visible { top: 1rem; }

/* ───────────────────────── Typography ───────────────────────── */

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: var(--h-weight);
  line-height: 1.02;
  letter-spacing: -0.02em;
  font-variation-settings: "opsz" var(--h-opsz), "SOFT" var(--h-soft), "WONK" var(--h-wonk);
  color: var(--fg);
  text-wrap: balance;
}

h1 { font-size: var(--fs-7); letter-spacing: -0.035em; }
h2 { font-size: var(--fs-6); letter-spacing: -0.025em; }
h3 { font-size: var(--fs-4); line-height: 1.1; font-weight: var(--h-weight-bold); letter-spacing: -0.015em; }
h4 { font-size: var(--fs-3); font-weight: var(--h-weight-bold); letter-spacing: -0.005em; }
h5 { font-size: var(--fs-2); }

.display-italic { font-style: italic; font-variation-settings: "opsz" var(--h-opsz), "SOFT" 100, "WONK" 1; }

p { max-width: var(--max-prose); color: var(--fg-soft); }
p + p { margin-top: 1em; }
p.lead {
  font-family: var(--font-display);
  font-size: var(--fs-4);
  font-weight: 340;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--fg);
  max-width: 30ch;
  font-variation-settings: "opsz" 24, "SOFT" 40, "WONK" 0;
}

.mono, .eyebrow, .meta, code {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  font-weight: 440;
  letter-spacing: 0.02em;
  color: var(--fg-mute);
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  color: var(--fg-mute);
}
.eyebrow .dot {
  display: inline-block;
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  margin-right: 0.6em;
  vertical-align: 0.1em;
}

/* ───────────────────────── Layout ───────────────────────── */

.container {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-inline);
  position: relative;
  z-index: 2;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gap-col);
}

section {
  padding-block: var(--pad-section);
  position: relative;
  z-index: 2;
}

.rule { border-bottom: 1px solid var(--rule-c); }
.rule-top { border-top: 1px solid var(--rule-c); }

/* Section head — with oversized margin numeral */
.section-head {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(auto, 9rem) 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: baseline;
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
  border-bottom: 1px solid var(--rule-c);
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
  position: relative;
}
.section-head .numeral {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 280;
  line-height: 0.88;
  color: var(--fg);
  font-variation-settings: "opsz" 144, "SOFT" 20, "WONK" 1;
  letter-spacing: -0.05em;
  position: relative;
  padding-top: 0.9rem;
}
.section-head .numeral::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 2.5rem;
  height: 2px;
  background: var(--accent);
}
.section-head .numeral .sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-mute);
  margin-top: 0.75rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--rule-c);
}
.section-head .head-title {
  font-size: var(--fs-5);
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.section-head .eyebrow { display: block; margin-bottom: 0.75rem; }

@media (max-width: 640px) {
  .section-head {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  .section-head .numeral { font-size: 2.5rem; padding-top: 0.6rem; }
  .section-head .numeral::before { width: 1.75rem; }
}

/* ───────────────────────── Section theme invert ───────────────────────── */

section.invert {
  --bg: #0B0D12;
  --bg-elev: #13161E;
  --fg: #ECE4D4;
  --fg-soft: #C5BCA8;
  --fg-mute: #8A8374;
  --rule-c: #2A2D34;
  --rule-strong: #3E434D;
  --accent: #E1A24A;
  --accent-deep: #C9841A;
  background: var(--bg);
  color: var(--fg);
  transition: background-color 360ms var(--ease);
}
section.invert::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.22;
  mix-blend-mode: screen;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.95  0 0 0 0 0.9  0 0 0 0 0.8  0 0 0 0.06 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  z-index: 0;
}
section.invert > .container { position: relative; z-index: 2; }

/* ───────────────────────── Header / Nav ───────────────────────── */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--rule-c);
}
.site-header .bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem var(--pad-inline);
  max-width: var(--max-w);
  margin-inline: auto;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 440;
  letter-spacing: 0.02em;
  line-height: 1;
  text-transform: uppercase;
  font-variation-settings: "opsz" 24, "SOFT" 30, "WONK" 1;
}
.brand .word-1 { color: var(--fg); }
.brand .word-2 { color: var(--fg-mute); }
.brand .mark {
  width: 22px; height: 22px;
  margin-right: 0.35rem;
  color: var(--accent);
  flex-shrink: 0;
  align-self: center;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.75rem);
}
.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--fg-soft);
  padding: 0.3rem 0;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
  white-space: nowrap;
}
.site-nav a:hover { color: var(--fg); border-color: var(--rule-strong); }
.site-nav a.active { color: var(--fg); border-color: var(--accent); }

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--fg);
}
.nav-toggle svg { width: 22px; height: 22px; }
.nav-toggle .icon-close { display: none; }
[aria-expanded="true"] .icon-open { display: none; }
[aria-expanded="true"] .icon-close { display: block; }

@media (max-width: 820px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: fixed;
    top: 0; right: 0;
    width: min(320px, 86vw);
    height: 100svh;
    background: var(--bg);
    border-left: 1px solid var(--rule-c);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0.25rem;
    padding: 5rem 2rem 2rem;
    transform: translateX(100%);
    transition: transform var(--dur) var(--ease);
    z-index: 60;
  }
  .site-nav.open { transform: translateX(0); }
  .site-nav a {
    font-size: 0.78rem;
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--rule-c);
    width: 100%;
  }
  .nav-close {
    position: absolute;
    top: 1rem; right: 1rem;
    width: 44px; height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--fg);
  }
  .nav-close svg { width: 22px; height: 22px; }
}
@media (min-width: 821px) {
  .nav-close { display: none; }
}

.nav-backdrop {
  position: fixed;
  inset: 0;
  background: color-mix(in srgb, var(--ink) 50%, transparent);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur) var(--ease);
  z-index: 55;
}
.nav-backdrop.show {
  opacity: 1;
  pointer-events: auto;
}

/* ───────────────────────── Buttons / Links ───────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-size: var(--fs-2);
  font-weight: 440;
  letter-spacing: -0.005em;
  color: var(--fg);
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--fg);
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), gap var(--dur-fast) var(--ease);
  font-variation-settings: "opsz" 48, "SOFT" 30, "WONK" 1;
}
.btn .arrow { transition: transform var(--dur) var(--ease-out); }
.btn:hover { color: var(--accent); border-color: var(--accent); gap: 0.9rem; }
.btn:hover .arrow { transform: translate(3px, -3px); }

.btn-primary { border-color: var(--accent); color: var(--fg); }
.btn-primary:hover { color: var(--accent); }

.btn-mono {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--rule-strong);
  color: var(--fg-soft);
}
.btn-mono:hover { color: var(--accent); border-color: var(--accent); }

/* ───────────────────────── Hero ───────────────────────── */

.hero {
  padding-top: clamp(6rem, 12vw, 9rem);
  padding-bottom: clamp(3rem, 8vw, 6rem);
  position: relative;
}

.hero .grid { row-gap: clamp(2rem, 4vw, 3rem); }

.hero-text { grid-column: 1 / -1; }
.hero-vis { grid-column: 1 / -1; }

@media (min-width: 900px) {
  .hero-text { grid-column: 1 / span 7; }
  .hero-vis { grid-column: 8 / span 5; align-self: end; }
}

.hero h1 {
  font-size: var(--fs-7);
  letter-spacing: -0.04em;
  line-height: 0.96;
  font-weight: 320;
  font-variation-settings: "opsz" 144, "SOFT" 40, "WONK" 1;
}
.hero h1 .em { font-style: italic; font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1; color: var(--fg); }
.hero h1 .accent { color: var(--accent); font-style: normal; }

.hero .kicker {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.hero .kicker .tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--fg-mute);
}
.hero .kicker .rule-line { flex: 1; height: 1px; background: var(--rule-c); max-width: 220px; }

.hero .sub {
  font-family: var(--font-display);
  font-size: var(--fs-4);
  font-weight: 340;
  line-height: 1.25;
  max-width: 26ch;
  color: var(--fg-soft);
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
  font-variation-settings: "opsz" 36, "SOFT" 50, "WONK" 0;
}

.hero .actions {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: center;
  margin-top: clamp(2rem, 4vw, 3rem);
}

.hero-vis .panel {
  position: relative;
  aspect-ratio: 5 / 4;
  border: 1px solid var(--rule-c);
  background: var(--bg);
  overflow: hidden;
}
.hero-vis .panel::before,
.hero-vis .panel::after {
  content: "";
  position: absolute;
  background: var(--rule-c);
}
.hero-vis .panel::before { top: 0; left: 20%; width: 1px; height: 100%; opacity: 0.5; }
.hero-vis .panel::after { top: 40%; left: 0; width: 100%; height: 1px; opacity: 0.5; }

.wave-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }

.hero-vis .meta-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule-c);
  border-left: 1px solid var(--rule-c);
  border-right: 1px solid var(--rule-c);
}
.hero-vis .cell {
  padding: 0.9rem 1rem;
  border-right: 1px solid var(--rule-c);
}
.hero-vis .cell:last-child { border-right: 0; }
.hero-vis .cell .k { font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--fg-mute); }
.hero-vis .cell .v { font-family: var(--font-display); font-size: var(--fs-3); font-weight: 420; color: var(--fg); margin-top: 0.35rem; letter-spacing: -0.01em; }
.hero-vis .cell .v .u { font-family: var(--font-mono); font-size: 0.7rem; color: var(--fg-mute); margin-left: 0.2em; letter-spacing: 0.05em; }
.hero-vis .legend {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  border: 1px solid var(--rule-c);
  border-top: 0;
  background: var(--bg);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--fg-mute);
}
.hero-vis .legend .signal { color: var(--accent); }

.hero-margin-claim {
  grid-column: 1 / -1;
  margin-top: clamp(3rem, 6vw, 5rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule-c);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 900px) {
  .hero-margin-claim {
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }
}
.hero-margin-claim .claim .k { font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--fg-mute); margin-bottom: 0.5rem; }
.hero-margin-claim .claim .v { font-family: var(--font-display); font-size: var(--fs-3); line-height: 1.1; font-weight: 400; letter-spacing: -0.01em; color: var(--fg); }

/* ───────────────────────── Factor Ledger (About) ───────────────────────── */

.factor-intro {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
@media (min-width: 900px) {
  .factor-intro { grid-template-columns: 5fr 7fr; align-items: start; }
}
.factor-intro .lead-quote {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.6vw, 2.2rem);
  font-weight: 320;
  line-height: 1.2;
  letter-spacing: -0.015em;
  font-variation-settings: "opsz" 48, "SOFT" 60, "WONK" 1;
  color: var(--fg);
  max-width: 22ch;
}
.factor-intro .lead-quote .em {
  font-style: italic;
  color: var(--accent);
  font-variation-settings: "opsz" 48, "SOFT" 100, "WONK" 1;
}
.factor-intro .body p {
  font-size: var(--fs-2);
  color: var(--fg-soft);
  max-width: 52ch;
}
.factor-intro .body p + p { margin-top: 1em; }
.factor-intro .body .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--fg-mute);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule-c);
}

.factor-ledger {
  grid-column: 1 / -1;
  border-top: 1px solid var(--rule-c);
  border-bottom: 1px solid var(--rule-c);
}
.factor-ledger .row-head, .factor-ledger .row {
  display: grid;
  grid-template-columns: 3rem 1fr 1.4fr 1.4fr;
  gap: clamp(0.75rem, 2vw, 1.75rem);
  padding: 1rem clamp(0.25rem, 1vw, 0.75rem);
  align-items: baseline;
  border-bottom: 1px solid var(--rule-c);
}
.factor-ledger .row-head {
  border-bottom: 1px solid var(--rule-strong);
  padding-top: 1.25rem;
  padding-bottom: 0.75rem;
}
.factor-ledger .row-head > *,
.factor-ledger .row .col-meta {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--fg-mute);
}
.factor-ledger .row:last-child { border-bottom: 0; }

.factor-ledger .col-n {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--accent);
  font-weight: 500;
}
.factor-ledger .col-name {
  font-family: var(--font-display);
  font-size: var(--fs-3);
  font-weight: 440;
  letter-spacing: -0.01em;
  color: var(--fg);
  line-height: 1.1;
}
.factor-ledger .col-name .sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--fg-mute);
  margin-top: 0.3rem;
  font-weight: 500;
}
.factor-ledger .col-what,
.factor-ledger .col-why {
  font-size: var(--fs-1);
  color: var(--fg-soft);
  line-height: 1.5;
}

.factor-ledger .row.highlight {
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  position: relative;
}
.factor-ledger .row.highlight::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
}
.factor-ledger .row.highlight .col-n,
.factor-ledger .row.highlight .col-name { color: var(--fg); }
.factor-ledger .row.highlight .col-name .sub { color: var(--accent); }
.factor-ledger .row.highlight .col-what,
.factor-ledger .row.highlight .col-why {
  color: var(--fg);
  font-family: var(--font-display);
  font-size: var(--fs-2);
  font-weight: 440;
  font-style: italic;
  font-variation-settings: "opsz" 24, "SOFT" 80, "WONK" 1;
}

@media (max-width: 780px) {
  .factor-ledger .row-head { display: none; }
  .factor-ledger .row {
    grid-template-columns: auto 1fr;
    grid-template-areas:
      "n name"
      ". what"
      ". why";
    row-gap: 0.4rem;
    padding: 1.1rem 0.75rem;
  }
  .factor-ledger .col-n { grid-area: n; padding-top: 0.15rem; }
  .factor-ledger .col-name { grid-area: name; }
  .factor-ledger .col-what { grid-area: what; }
  .factor-ledger .col-why { grid-area: why; }
  .factor-ledger .col-what::before,
  .factor-ledger .col-why::before {
    content: attr(data-k);
    display: block;
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--fg-mute);
    margin-bottom: 0.2rem;
  }
}

/* Brand phrase pull-out after ledger */
.factor-epigraph {
  grid-column: 1 / -1;
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding-top: clamp(1.5rem, 3vw, 2.25rem);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 900px) {
  .factor-epigraph { grid-template-columns: 1fr 5fr; align-items: baseline; }
}
.factor-epigraph .k {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--fg-mute);
}
.factor-epigraph .v {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  font-weight: 320;
  line-height: 1.18;
  font-style: italic;
  letter-spacing: -0.01em;
  color: var(--fg);
  max-width: 24ch;
  font-variation-settings: "opsz" 72, "SOFT" 100, "WONK" 1;
}
.factor-epigraph .v .accent { color: var(--accent); font-style: normal; }

/* ───────────────────────── About / Thesis (legacy, kept for safety) ───────────────────────── */

.thesis-body { grid-column: 1 / -1; }
@media (min-width: 900px) {
  .thesis-body { grid-column: 3 / span 8; }
}
.thesis-body p {
  font-family: var(--font-display);
  font-size: var(--fs-3);
  font-weight: 340;
  line-height: 1.4;
  color: var(--fg);
  max-width: 34ch;
  font-variation-settings: "opsz" 24, "SOFT" 40, "WONK" 0;
}
.thesis-body p .drop {
  font-family: var(--font-display);
  font-size: 3.2em;
  float: left;
  line-height: 0.86;
  padding-right: 0.1em;
  padding-top: 0.04em;
  margin-right: 0.03em;
  font-weight: 320;
  font-variation-settings: "opsz" 144, "SOFT" 0, "WONK" 1;
  color: var(--accent);
}
.thesis-body p + p { margin-top: 1.25em; max-width: 50ch; font-size: var(--fs-2); font-family: var(--font-body); color: var(--fg-soft); font-weight: 400; }

.thesis-pillars {
  grid-column: 1 / -1;
  margin-top: clamp(3rem, 6vw, 5rem);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0;
  border-top: 1px solid var(--rule-c);
}
.pillar {
  padding: 1.5rem 1.25rem 0 0;
  border-right: 1px solid var(--rule-c);
}
.pillar:last-child { border-right: 0; }
@media (max-width: 640px) {
  .pillar { border-right: 0; border-bottom: 1px solid var(--rule-c); padding-bottom: 1.25rem; padding-right: 0; }
  .pillar:last-child { border-bottom: 0; }
}
.pillar .n { font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--accent); margin-bottom: 0.65rem; }
.pillar .t { font-family: var(--font-display); font-size: var(--fs-3); font-weight: 440; letter-spacing: -0.01em; color: var(--fg); line-height: 1.15; margin-bottom: 0.5rem; }
.pillar .d { font-size: var(--fs-1); color: var(--fg-soft); line-height: 1.5; max-width: 32ch; }

/* ───────────────────────── Use Cases ───────────────────────── */

.usecases-grid {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--rule-c);
  border-left: 1px solid var(--rule-c);
}
@media (min-width: 700px) { .usecases-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1100px) { .usecases-grid { grid-template-columns: repeat(3, 1fr); } }

.usecase {
  position: relative;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border-right: 1px solid var(--rule-c);
  border-bottom: 1px solid var(--rule-c);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 22rem;
  background: var(--bg);
  transition: background var(--dur) var(--ease);
}
.usecase:hover { background: var(--bg-elev); }
.usecase:hover .claims { opacity: 1; transform: translateY(0); }

.usecase .uc-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; }
.usecase .uc-id { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-mute); }
.usecase .uc-id .n { color: var(--accent); }
.usecase .glyph {
  width: 72px; height: 72px;
  margin-bottom: 0.25rem;
  color: var(--fg);
}
.usecase .glyph .stroke-accent { color: var(--accent); }
.usecase h3 {
  font-family: var(--font-display);
  font-size: var(--fs-4);
  font-weight: 440;
  letter-spacing: -0.015em;
  line-height: 1.08;
  color: var(--fg);
  font-variation-settings: "opsz" 36, "SOFT" 30, "WONK" 1;
}
.usecase .abstract {
  font-size: var(--fs-1);
  line-height: 1.55;
  color: var(--fg-soft);
  max-width: 42ch;
}
.usecase .claims {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px dashed var(--rule-strong);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.75;
  letter-spacing: 0.02em;
  color: var(--fg-mute);
  opacity: 0.5;
  transform: translateY(4px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.usecase .claims li { list-style: none; padding-left: 1.2em; position: relative; }
.usecase .claims li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
}
@media (hover: none) { .usecase .claims { opacity: 1; transform: none; } }

/* ───────────────────────── Patents ───────────────────────── */

.patents-wrap {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2.5rem, 5vw, 4rem);
}
@media (min-width: 900px) {
  .patents-wrap { grid-template-columns: 7fr 5fr; align-items: start; }
}

.patents-list { border-top: 1px solid var(--rule-c); }
.patent-row {
  display: grid;
  grid-template-columns: minmax(8rem, auto) 1fr auto;
  gap: clamp(1rem, 3vw, 2.5rem);
  align-items: baseline;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--rule-c);
}
.patent-row .num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.patent-row .title {
  font-family: var(--font-display);
  font-size: var(--fs-3);
  font-weight: 420;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--fg);
}
.patent-row .year {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fg-mute);
  letter-spacing: 0.08em;
  white-space: nowrap;
}
@media (max-width: 640px) {
  .patent-row { grid-template-columns: 1fr; gap: 0.35rem; }
}

.patents-note {
  padding: 1.75rem;
  background: var(--bg-elev);
  border: 1px solid var(--rule-c);
}
.patents-note .eyebrow { margin-bottom: 1rem; }
.patents-note h4 {
  font-family: var(--font-display);
  font-size: var(--fs-3);
  font-weight: 440;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
  color: var(--fg);
}
.patents-note p {
  font-size: var(--fs-1);
  color: var(--fg-soft);
  max-width: none;
}
.patents-note .big {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin: 1.5rem 0 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule-c);
}
.patents-note .big .num {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 300;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--accent);
  font-variation-settings: "opsz" 144, "SOFT" 20, "WONK" 1;
}
.patents-note .big .l {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--fg-mute);
}

/* ───────────────────────── How It Works / Integrations ───────────────────────── */

.flow {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 4vw, 3rem);
  align-items: start;
}
@media (min-width: 900px) {
  .flow { grid-template-columns: 5fr 7fr; }
}
.flow-copy h3 {
  font-size: var(--fs-4);
  font-weight: 440;
  letter-spacing: -0.015em;
  line-height: 1.1;
  margin-bottom: 1rem;
}
.flow-copy p { max-width: 38ch; }

.flow-steps { list-style: none; margin-top: 1.75rem; border-top: 1px solid var(--rule-c); }
.flow-steps li { display: grid; grid-template-columns: auto 1fr; gap: 1rem 1.25rem; padding: 1rem 0; border-bottom: 1px solid var(--rule-c); align-items: baseline; }
.flow-steps .n { font-family: var(--font-mono); font-size: 0.78rem; color: var(--accent); letter-spacing: 0.1em; white-space: nowrap; }
.flow-steps .t { font-family: var(--font-display); font-size: var(--fs-2); font-weight: 440; color: var(--fg); letter-spacing: -0.005em; }
.flow-steps .d { grid-column: 2; font-size: var(--fs-1); color: var(--fg-soft); max-width: 46ch; }

.flow-vis {
  aspect-ratio: 6 / 5;
  border: 1px solid var(--rule-c);
  background: var(--bg);
  position: relative;
  overflow: hidden;
}
.flow-vis svg { width: 100%; height: 100%; }

.integrations-lead {
  grid-column: 1 / -1;
  margin-bottom: clamp(2rem, 4vw, 3rem);
  max-width: 62ch;
}
.integrations-lead p {
  font-family: var(--font-display);
  font-size: var(--fs-3);
  font-weight: 340;
  line-height: 1.3;
  letter-spacing: -0.005em;
  color: var(--fg);
  max-width: none;
  font-variation-settings: "opsz" 36, "SOFT" 50, "WONK" 0;
}

.integrations-ledger {
  grid-column: 1 / -1;
  border-top: 1px solid var(--rule-c);
  border-bottom: 1px solid var(--rule-c);
}
.integrations-ledger .row-head,
.integrations-ledger .row {
  display: grid;
  grid-template-columns: 3rem 1.3fr 1.2fr 2fr;
  gap: clamp(0.75rem, 2vw, 1.75rem);
  padding: 1rem clamp(0.25rem, 1vw, 0.75rem);
  align-items: baseline;
  border-bottom: 1px solid var(--rule-c);
}
.integrations-ledger .row-head {
  border-bottom: 1px solid var(--rule-strong);
  padding-top: 1.25rem;
  padding-bottom: 0.75rem;
}
.integrations-ledger .row-head > * {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--fg-mute);
}
.integrations-ledger .row:last-child { border-bottom: 0; }
.integrations-ledger .col-n {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--accent);
  font-weight: 500;
}
.integrations-ledger .col-name {
  font-family: var(--font-display);
  font-size: var(--fs-3);
  font-weight: 440;
  letter-spacing: -0.01em;
  color: var(--fg);
  line-height: 1.1;
}
.integrations-ledger .col-env {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-soft);
}
.integrations-ledger .col-dep {
  font-size: var(--fs-1);
  color: var(--fg-soft);
  line-height: 1.5;
  max-width: 42ch;
}

@media (max-width: 780px) {
  .integrations-ledger .row-head { display: none; }
  .integrations-ledger .row {
    grid-template-columns: auto 1fr;
    grid-template-areas:
      "n name"
      ". env"
      ". dep";
    row-gap: 0.3rem;
    padding: 1.1rem 0.75rem;
  }
  .integrations-ledger .col-n { grid-area: n; padding-top: 0.15rem; }
  .integrations-ledger .col-name { grid-area: name; }
  .integrations-ledger .col-env { grid-area: env; }
  .integrations-ledger .col-dep { grid-area: dep; }
}

/* Legacy 6-column grid — retained for safety if referenced elsewhere */
.integrations {
  grid-column: 1 / -1;
  margin-top: clamp(2rem, 5vw, 4rem);
  padding-top: clamp(2rem, 4vw, 3rem);
  border-top: 1px solid var(--rule-c);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0;
}
.integration {
  padding: 1.25rem 1rem;
  border-right: 1px solid var(--rule-c);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.integration:last-child { border-right: 0; }
@media (max-width: 640px) {
  .integration { border-right: 0; border-bottom: 1px solid var(--rule-c); }
  .integration:last-child { border-bottom: 0; }
}
.integration .n { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-mute); }
.integration .t { font-family: var(--font-display); font-size: var(--fs-2); font-weight: 440; color: var(--fg); letter-spacing: -0.005em; }
.integration .d { font-size: 0.82rem; color: var(--fg-mute); line-height: 1.45; }

/* ───────────────────────── Team ───────────────────────── */

.team-grid {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0;
  border-top: 1px solid var(--rule-c);
  border-left: 1px solid var(--rule-c);
}
.team-card {
  padding: 1.5rem 1.25rem;
  border-right: 1px solid var(--rule-c);
  border-bottom: 1px solid var(--rule-c);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  min-height: 11rem;
  background: var(--bg);
}
.team-card .role { font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--fg-mute); }
.team-card .name { font-family: var(--font-display); font-size: var(--fs-3); font-weight: 440; letter-spacing: -0.01em; line-height: 1.1; color: var(--fg); margin-top: 0.2rem; }
.team-card .bio { font-size: 0.9rem; color: var(--fg-soft); line-height: 1.45; margin-top: 0.35rem; flex: 1; }
.team-card .link { margin-top: 0.5rem; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-mute); }
.team-card .link:hover { color: var(--accent); }
.team-card .link .arrow { margin-left: 0.4em; }

/* ───────────────────────── Conversion / Contact ───────────────────────── */

.cta-block {
  grid-column: 1 / -1;
  padding-block: clamp(3rem, 7vw, 5rem);
  padding-inline: clamp(1.5rem, 4vw, 3.5rem);
  background: var(--ink);
  color: var(--bone);
  border: 1px solid var(--ink);
  position: relative;
  overflow: hidden;
}

/* Inside a dark section, flip the CTA block to bone-on-ink for contrast */
section.invert .cta-block {
  background: #F4EFE6;
  color: #0B0D12;
  border-color: #F4EFE6;
}
section.invert .cta-block h2 { color: #0B0D12; }
section.invert .cta-block h2 .em { color: #A66A0F; }
section.invert .cta-block p { color: #3E3A33; }
section.invert .cta-block .btn { color: #0B0D12; border-color: #0B0D12; }
section.invert .cta-block .btn:hover { color: #A66A0F; border-color: #A66A0F; }
section.invert .cta-block .btn-primary { border-color: #A66A0F; }
section.invert .cta-block::after {
  background:
    radial-gradient(circle at 75% 25%, color-mix(in srgb, #C9841A 22%, transparent) 0%, transparent 55%);
}
.cta-block::after {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 60%;
  height: 100%;
  background:
    radial-gradient(circle at 75% 25%, color-mix(in srgb, var(--amber) 25%, transparent) 0%, transparent 50%);
  pointer-events: none;
}
.cta-block .inner { position: relative; z-index: 2; }
.cta-block h2 { color: var(--bone); font-size: var(--fs-6); letter-spacing: -0.025em; line-height: 0.98; margin-bottom: 1rem; max-width: 16ch; }
.cta-block h2 .em { font-style: italic; color: var(--amber); }
.cta-block p { color: color-mix(in srgb, var(--bone) 75%, transparent); max-width: 42ch; margin-bottom: 2rem; }
.cta-block .actions { display: flex; gap: clamp(1.5rem, 4vw, 3rem); flex-wrap: wrap; align-items: center; }
.cta-block .btn { color: var(--bone); border-color: var(--bone); }
.cta-block .btn:hover { color: var(--amber); border-color: var(--amber); }
.cta-block .btn-primary { border-color: var(--amber); }

.contact {
  grid-column: 1 / -1;
  margin-top: clamp(3rem, 6vw, 5rem);
  padding-top: clamp(2rem, 5vw, 3.5rem);
  border-top: 1px solid var(--rule-c);
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
@media (min-width: 900px) {
  .contact { grid-template-columns: 1fr 1fr 1fr; gap: clamp(2rem, 4vw, 3.5rem); }
}
.contact-col h4 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--fg-mute);
  margin-bottom: 1rem;
}
.contact-col .v {
  font-family: var(--font-display);
  font-size: var(--fs-2);
  font-weight: 420;
  line-height: 1.35;
  color: var(--fg);
  letter-spacing: -0.005em;
}
.contact-col a.v:hover { color: var(--accent); }

/* ───────────────────────── Footer ───────────────────────── */

.site-footer {
  border-top: 1px solid var(--rule-c);
  background: var(--bg);
  padding-block: clamp(3rem, 6vw, 4.5rem);
  margin-top: clamp(2rem, 5vw, 4rem);
  position: relative;
  z-index: 2;
}
.site-footer .container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
@media (min-width: 900px) {
  .site-footer .container { grid-template-columns: 4fr 3fr 3fr; }
}
.site-footer .brand-col .brand { font-size: 1.2rem; }
.site-footer .brand-col .tag { margin-top: 1rem; font-size: 0.95rem; color: var(--fg-soft); max-width: 34ch; line-height: 1.5; }
.site-footer .brand-col .addr { margin-top: 1.5rem; font-family: var(--font-mono); font-size: 0.75rem; line-height: 1.7; color: var(--fg-mute); letter-spacing: 0.02em; }

.footer-links h5, .footer-social h5 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--fg-mute);
  margin-bottom: 1rem;
}
.footer-links ul, .footer-social ul { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
.footer-links a, .footer-social a {
  font-family: var(--font-display);
  font-size: var(--fs-1);
  color: var(--fg-soft);
  font-weight: 420;
  letter-spacing: -0.005em;
  transition: color var(--dur-fast) var(--ease);
}
.footer-links a:hover, .footer-social a:hover { color: var(--accent); }

.colophon {
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule-c);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-mute);
}

/* ───────────────────────── Reveal animation ───────────────────────── */

[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
  transition-delay: var(--d, 0ms);
}
[data-reveal].in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ───────────────────────── Legal page ───────────────────────── */

.legal-page {
  padding-top: clamp(8rem, 14vw, 10rem);
  padding-bottom: clamp(5rem, 10vw, 8rem);
}
.legal-page .lead { max-width: 48ch; }
.legal-page .container > h1 {
  font-size: var(--fs-6);
  font-weight: 320;
  letter-spacing: -0.03em;
  line-height: 0.98;
  margin-bottom: 1rem;
  max-width: 20ch;
}
.legal-page article { max-width: 62ch; margin-top: clamp(2rem, 4vw, 3rem); }
.legal-page article h2 {
  font-size: var(--fs-4);
  font-weight: 440;
  letter-spacing: -0.015em;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}
.legal-page article p { margin-bottom: 1rem; }
.legal-page article ul { padding-left: 1.25rem; margin-bottom: 1rem; color: var(--fg-soft); }
.legal-page article ul li { margin-bottom: 0.35rem; }